package 天梯赛.tts44.moni.A9;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class test
{
    public static void main(String[] args) throws IOException {
        BufferedReader bf=new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st=new StringTokenizer(bf.readLine());
        int n=Integer.parseInt(st.nextToken());

    }
}
